Holy crap that looks awesome! Is she just a billboarded sprite, and are the animations done in mecanim or outside Unity? That's such a neat look, love your art style :D
And thank you!! I'm big on games having good art direction and strive to make sure that shows in my own work. (and doing billboarded sprites means that I can very quickly knock out new characters without having to model/unwrap/texture/rig/etc and that simplicity adds a hell of a lot to the feeling of this game :D)